------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2760! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 406 Comm: kworker/u4:5 Not tainted 6.1.129-syzkaller-00017-g642656a36791 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: writeback wb_workfn (flush-7:4) RIP: 0010:ext4_writepages+0x3fab/0x3fd0 fs/ext4/inode.c:2759 Code: 03 80 ff 31 ff 89 de e8 f3 03 80 ff 45 84 f6 75 2a e8 59 01 80 ff 49 bc 00 00 00 00 00 fc ff df e9 6e f6 ff ff e8 45 01 80 ff <0f> 0b e8 3e 01 80 ff e8 85 4d 0b ff e9 46 c3 ff ff e8 2f 01 80 ff RSP: 0018:ffffc9000f717000 EFLAGS: 00010293 RAX: ffffffff81f5390b RBX: 0000008000000000 RCX: ffff888117880000 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc9000f717410 R08: ffffffff81f5006b R09: ffffed10200aece9 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811c122000 R13: ffff888100576880 R14: 0000008410000000 R15: ffffc9000f7172e0 FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055556c8db4e8 CR3: 000000012f725000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x385/0x620 mm/page-writeback.c:2494 __writeback_single_inode+0xdc/0xb80 fs/fs-writeback.c:1612 writeback_sb_inodes+0xb32/0x1910 fs/fs-writeback.c:1903 wb_writeback+0x3c8/0xa00 fs/fs-writeback.c:2079 wb_do_writeback fs/fs-writeback.c:2226 [inline] wb_workfn+0x399/0x1030 fs/fs-writeback.c:2266 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446 kthread+0x26d/0x300 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_writepages+0x3fab/0x3fd0 fs/ext4/inode.c:2759 Code: 03 80 ff 31 ff 89 de e8 f3 03 80 ff 45 84 f6 75 2a e8 59 01 80 ff 49 bc 00 00 00 00 00 fc ff df e9 6e f6 ff ff e8 45 01 80 ff <0f> 0b e8 3e 01 80 ff e8 85 4d 0b ff e9 46 c3 ff ff e8 2f 01 80 ff RSP: 0018:ffffc9000f717000 EFLAGS: 00010293 RAX: ffffffff81f5390b RBX: 0000008000000000 RCX: ffff888117880000 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc9000f717410 R08: ffffffff81f5006b R09: ffffed10200aece9 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811c122000 R13: ffff888100576880 R14: 0000008410000000 R15: ffffc9000f7172e0 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c26b397 CR3: 000000012f35b000 CR4: 00000000003526b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400